dugriri - brismu bridi

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Theorem dugriri 622

Description: Inference form of df-dugri 620 (Contributed by la korvo, 9-Aug-2023.)

**Hypothesis**
Ref	Expression
dugriri.0	⊢ ko'a te se tenfa ko'e ko'i

**Assertion**
Ref	Expression
dugriri	⊢ ko'a dugri ko'e ko'i

**Proof of Theorem dugriri**
Step	Hyp	Ref	Expression
1		dugriri.0	. 2 ⊢ ko'a te se tenfa ko'e ko'i
2		df-dugri 620	. 2 ⊢ go ko'a dugri ko'e ko'i gi ko'a te se tenfa ko'e ko'i
3	1, 2	bi-rev 102	1 ⊢ ko'a dugri ko'e ko'i

Colors of variables: sumti selbri bridi

Syntax hints: se sbs 212 te sbt 396 tenfa sbtenfa 618 dugri sbdugri 619

This theorem was proved from axioms: ax-mp 10 ax-k 11 ax-s 15 ax-ge-le 48 ax-ge-re 49 ax-ge-in 50

This theorem depends on definitions: df-go 83 df-dugri 620

This theorem is referenced by: (None)